how to set highlight_outputs = FALSE in YAML header?

[rmflight]

For a given header, how can one set the option for highlight_outputs = FALSE in the YAML itself?

title: "My Title"
author: "Robert M Flight, Joshua M Mitchell, Hunter NB Moseley"
date: "2019-08-21"
output: 
  redoc::redoc:
    highlight_outputs: FALSE

Doesn't seem to work.

[noamross]

I can't recreate this - it works both in the current version and a few commits back from before changing the highlight_outputs default. Can you reinstall and test, and if it still can't be set (FALSE or TRUE), attach the resulting file?